I've been researching this all morning and can't seem to figure this out. I keep getting this error but followed (what I thought) the fix from others. I'm new to routing within a nav component. I'm sure you're not surprised! Any help is appreciated. Thanks! main-nav.component.ts import { Component, inject } from '@angular/core'; import { BreakpointObserver, Breakpoints } from '@angular/cdk/layout'; import { AsyncPipe } from '@angular/common'; import { MatToolbarModule } from '@angular/material/toolbar'; import { MatButtonModule } from '@angular/material/button'; import { MatSidenavModule } from '@angular/material/sidenav'; import { MatListModule } from '@angular/material/list'; import { MatIconModule } from '@angular/material/icon'; import { Observable } from 'rxjs'; import { map, shareReplay } from 'rxjs/operators'; import { RouterOutlet, RouterLink } from '@angular/router'; @Component({ selector: 'app-main-nav', standalone: true, templateUrl: './main-nav.component.html', styleUrl: './main-nav.component.scss', imports: [ MatToolbarModule, MatButtonModule, MatSidenavModule, MatListModule, MatIconModule, AsyncPipe, RouterOutlet, RouterLink ] }) export class MainNavComponent { private breakpointObserver = inject(BreakpointObserver); isHandset$: Observable<boolean> = this.breakpointObserver.observe(Breakpoints.Handset) .pipe( map(result => result.matches), shareReplay() ); } main-nav.component.html <mat-sidenav-container class="sidenav-container"> <mat-sidenav #drawer class="sidenav" fixedInViewport [attr.role]="(isHandset$ | async) ? 'dialog' : 'navigation'" [mode]="(isHandset$ | async) ? 'over' : 'side'" [opened]="(isHandset$ | async) === false"> <mat-toolbar>Menu</mat-toolbar> <mat-nav-list> <a mat-list-item routerLink="/company-create">Create Company</a> <a mat-list-item href="#">Link 2</a> <a mat-list-item href="#">Link 3</a> </mat-nav-list> </mat-sidenav> <mat-sidenav-content> <mat-toolbar color="primary"> @if (isHandset$ | async) { <button type="button" aria-label="Toggle sidenav" mat-icon-button (click)="drawer.toggle()"> <mat-icon aria-label="Side nav toggle icon">menu</mat-icon> </button> } <span>Company LLC</span> </mat-toolbar> <div class="content-area"> <router-outlet name="content"></router-outlet> </div> </mat-sidenav-content> </mat-sidenav-container> app.routes.ts import { Routes } from '@angular/router'; import { CompanyCreateComponent } from './components/company-create/company-create.component'; import { MainNavComponent } from './main-nav/main-nav.component'; export const routes: Routes = [ { path: '', component: MainNavComponent, children: [ {path: 'company-create',component: CompanyCreateComponent,outlet: 'content'}, { path: '', redirectTo: 'company-create', pathMatch: 'full', outlet: 'content' }, // Default view ] }] Continue reading...